How many time have you see USF being picked up on tournament before the WC51 rush strat? Me once: Nicko using Recon which became instantly nerfed after that. I'm not particularly fan of WC51 opening strat with Cavl rush but the fact is, that's the only thing that works well vs OKW early game.
I dont think that the WC51 is a big problem against OKW; its a problem against wehrmacht. Wehr players dont have counters to a kiting light vehicles and no counters against cc infantry (early game). Maybe the problem can be solved with buffs to wehr.
All in all i would like to see more commander variation in high level games. Im a huge fan of this game and we have great casters but right now its really hard to get excited if you see US mech and OKW Spec ops in 95% of all games.
I personally played the majority of my games with OKW but want big changes to Specops. Its so fucking strong that you really have to "convince" yourself not to chose it. But that is an other story and dont belong in this thread.